Sunday, 28 June 2015

Volcanos

Roundup of Global Volcanic Activity

Manam (Papua New Guinea): According to Darwin VAAC, an ash plume from the volcano rose 8,000 ft and extended 70 km to the NE today. The volcano seems to be in a phase of intermittent mild explosive activity.

Raung (East Java): Eruptive activity continues in the volcano's summit crater. Heat emission remains intense, suggesting the presence of lava (flow?), likely in combination with more or less intense strombolian activity. An ash plume was seen on satellite data last Friday. (VAAC Darwin)

Sangeang Api (Indonesia): Satellite data suggest that a new lava flow is active traveling from the summit crater of Doro Api through a narrow ravine on the SE side of the volcano. It is possible that effusive activity which began in early June last year in reality never ceased, but increased again now. The volcano began erupting with a large explosion on 30 May and several smaller ones in early June last year. This was followed by the effusion of a flow that quickly traveled down the SE slope of the volcano. Thermal signals remained intense until November 2014, then decreased, but did not disappear, but clearly picked up again late April this year, indicating the presence of active lava always in the same path. The current length of the flow is probably around 1.5 km.

Dukono (Halmahera): Ash emissions at variying intensity continue from the volcano. Darwin VAAC reported ah ash plume that rose to 6,000 ft (1.8 km) and extended 50 km NE yesterday.

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